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Method Research On Semantic Technology-Based Chinese Information Sentiment Analysis

Posted on:2007-11-16Degree:MasterType:Thesis
Country:ChinaCandidate:B LinFull Text:PDF
GTID:2178360212982331Subject:Management Science and Engineering
Abstract/Summary:PDF Full Text Request
In the face of abundant Sentiment information resources day by day on the web, how one can obtain and utilize the information fast and effectively is becoming a question that people pay close attention to. This paper gives an example, which is about sentiment mining in the field of Chinese movie reviews. And in the example, an information mining technique that is based on semantic orientation is used. The semantic orientation approach is popular when applied to English sentiment mining while seldom used in Chinese sentiment mining. And on the grounds of analysis of the example, we can also get something about the effect semantic orientation approach has on web sentiment mining of Chinese reviews.Firstly, the paper gives a fully introduction on the text classification. Through introduction to the concept, principle, and related technology of text classification, the paper summarizes the recent research on text classification.Secondly, the paper gives an introduction about the semantic orientation and gives the common steps of applying it. In terms of difference between Chinese and English, the paper analyzes the problem of semantic orientation when applied in English and makes some improvement when it is applied to Chinese, and finally proposes an improved arithmetic for Chinese that is quite different from what it is.Finally, in the experiment phrases, the paper applies the arithmetic to Chinese movie reviews, the result of which revealed that the performance is good. And of course, in order to make the right improvement, the paper makes some test to ensure that every step of the improved arithmetic is necessary. And furthermore, the paper compared it with Support Vector Machine, which is used commonly in text classification recent year. And finally the paper tests the performance with mobile reviews.The paper collects movie reviews and mobile reviews, which compose a shared material database, while improved the arithmetic. And based on the improved arithmetic, a classification system for Chinese sentiment is developed, which can automatically classify the Chinese sentiment document.Compared with the trained classified arithmetic, the improved arithmetic...
Keywords/Search Tags:Semantic orientation, Chinese Sentiment analysis, Opinion classification, Semantic oriented approach
PDF Full Text Request
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